Marshall Mount Postcode

New South Wales

Inner Regional Above NSW income
2530
Postcode for Marshall Mount, NSW
Phone area code: 02 · 87 km from Sydney · Pop. 177
177
Population
40
Median Age
$2,175
Household Income/wk
$375
Median Rent/wk
8/10
SEIFA Advantage
11.2
Area (km²)

Income, rent and SEIFA figures are from the ABS 2021 Census and are reported in 2021 dollars, not adjusted for subsequent inflation.

Where Marshall Mount ranks: household income is in the top 25% of NSW suburbs.

How Marshall Mount Compares

Marshall Mount vs the NSW average and the national average (2021 Census, population-weighted).

MetricMarshall MountNSW avgAU avg
Household income/wk $2,175 +NSW $1,931 $1,836
Rent/wk $375 -NSW $445 $390
Mortgage/month $2,167 ≈NSW $2,247 $1,958
Median age 40 45.0 45.0
SEIFA decile 8/10 +NSW 6.0/10 6.0/10
Unemployment 5.1% ≈NSW 5.0% 5.0%

Green pill = at least 10% above the NSW average; red = at least 10% below; grey = within 10%. For unemployment, colour polarity is inverted: lower is better.

Marshall Mount is a locality 87 km from Sydney in New South Wales, classified as inner regional by the ABS. The postcode is 2530. It falls within the Illawarra region. The local government area is Wollongong.

According to the 2021 Census, Marshall Mount has a population of 177 with a median age of 40. The median weekly household income is $2,175, above the NSW average. The unemployment rate is 5.1%. The Indigenous population is 3 (1.7% of residents).

Housing in Marshall Mount includes a median weekly rent of $375, median monthly mortgage repayment of $2,167, with 53 total dwellings. Housing costs in the area sit below the NSW average. Owner-occupied dwellings (owned or mortgaged) make up 76.9% of housing.

On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Marshall Mount scores in decile 8 out of 10, which is above the national average.

Marshall Mount is part of the Dapto - Port Kembla statistical area in New South Wales.

Marshall Mount Details

Postcode2530
StateNew South Wales (NSW)
Phone Area Code02
Population (2021)177
Median Age40 years
Median Household Income (Census 2021)$2,175/week
Median Personal Income (Census 2021)$840/week
Median Weekly Rent (Census 2021)$375
Median Monthly Mortgage (Census 2021)$2,167
Average Household Size3 persons
Area11.2 km²
Population Density16/km²
Total Dwellings53
Australian Citizens92.7%
Indigenous Population3 (1.7%)
Unemployment Rate5.1%
SEIFA IRSAD Decile8/10 (above average)
Latitude-34.545
Longitude150.736667
Distance from Sydney87 km
Region (SA4)Illawarra
Area (SA3)Dapto - Port Kembla
Local GovernmentWollongong
Federal ElectorateWhitlam

Age Profile

0–14 (16.9%) 15–24 (12.4%) 25–44 (21.5%) 45–64 (24.3%) 65+ (18.6%)
Show counts
0–14 years30 (16.9%)
15–24 years22 (12.4%)
25–44 years38 (21.5%)
45–64 years43 (24.3%)
65+ years33 (18.6%)

Housing Tenure

Owned outright (48.1%) Mortgaged (28.8%) Rented (23.1%)

SEIFA Socio-economic Index

Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 8 of 10. Higher deciles indicate more advantage.

Health Conditions (2021 Census)

Arthritis17 (9.6%)
Diabetes13 (7.3%)
Asthma9 (5.1%)
Heart Disease9 (5.1%)
Cancer6 (3.4%)
Lung Condition5 (2.8%)

Long-term health conditions self-reported in the 2021 Census. Persons may report more than one condition.

Motor Vehicles per Dwelling

No vehicle0 (0.0%)
1 vehicle13 (28.9%)
2 vehicles12 (26.7%)
3+ vehicles20 (44.4%)

Suburbs Near Marshall Mount

Same Postcode (2530)

More Marshall Mount Data

Page last reviewed . Data sources: Australian Bureau of Statistics 2021 Census (CC BY 4.0), SEIFA 2021 IRSAD, ACARA school profiles 2025. How this data is sourced.